Refrigerating container



May zo', 1924. 1,495,109

R. S. REYNOLDS REFRIGERATING- CONTAINER original Filed Dec. 24 1921 2sneew-snem 1 a noauto/1,

May 20, 1924. 1,495,109

\ R. s. REYNOLDS REFRIGERATING CONTAINER Original Filed Dec. 2.4, 1921 2Sheets-Sheen 2 Patented May 20, 1924.

UNITED STATES PATENT OFFICE.

RICHARD S. REYNOLDS, F LOUISVILLE, KENTQKY.

nzrarenaafrmo cameraman.

y.Application led December 24,- 1921, .Serial No. .524,728. RenewedApril 16, 1924.

To all whom z't may concern.'

Be it known that I, 'RICHARD oLDs, at Louisville,

S. REYN- in the county of J eierson and 'State of Kentucky, haveinvented certain..

new and useful Improvementsin Refrigerating Containers; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to containers adapted to store and preserveperishable materials. It relates more particularly to heat insulatedcontainers intended to hold ice cream in bulk, or in bricks or blocks,in which the ice cream is maintained in a chilled or frozen state by afreezing mixture or refrigerant so disposed with respect to the icecream as to` effect transfer of heat most eliiciently and so confined asto avoid all danger of contamination of the ice cream from the salt orother ingredients of the freezing mixture. The container is moreparticularly adapted' for preserving relatively small quantities of thefrozen product for delivery to homesl or for sale in smallestablishments.

The invention lconsists in a double walled container adapted toinsulatethe interior from the external-atmosphere, in vcombination -witha cover therefor comprising a sealed receptacle for the freezing mixtureor refrigerant as more particularly described hereinafter anddefined inthe appended claims. v

In the accompanying drawings in which like reference characters indicatelike parts throughout the several views,

Figure 1 is a vertical section center ofthe improved container;

Figure 2 is a horizontal Section therethrough on-the line-2f?. of Figure1,

Fi re 3 is a top plan view ofthe combine cover andreceptacle for .thechilling vmaterial broken' away in part;

In the drawings, in which I have illustrated the preferred embodiment.of my invention, 1 Aindicates the side walls of an inner receptacle,which may be rectangular in cross section, the rectangular vformadapting it particularly for the reception o bricks, cakes for ,bars ofice cream, which may be wrapped in tin foil or other suitable wrappi'ngmaterial. Encoinpassing the inner receptacle is an outer containerherein A"shown as 'having a cylindrical side-wall 2 a citizen of theUnited States, residing outerlandthe inner wall.

-ed sheets of paper stock such as through the and disk-like bottom 3.The space between the bottom 3 of the outer container and the ceptacleand the side wall 2 of the outer container may be Afilled withl anysuitable insulating material, such as ground cork; or the-inner 'andouter walls may be so constructed as to serve ,in any known manner toprevent the transfer of heat between the The inner and outer receptaclemay bema'de of anymaterial suita sheet iron. I prefer to use as anoutercontainer a paper walled vessel formedof spirally and helicallywound and suitably treatisdisclosed in my Patent-1,299,031, lJune 24,1919. The bottom 3 may be ressed from suitable sheet material, preferaly sheet metal, and inset, as shown, within the lower margin of the lefor the purpose such as tinned side wall of .said outer container andmay have a groove pressed in aI marginal flange 5 to embrace the loweredge of the side wall 2 as shown, and the metal of the grooved flange 5ma securely. o close the upper end of the insulated .space between thewalls of the inner receptacle and outer container a cover plate 6, ofsheet metal, may be pressed in between said wallsland'2, as shown. `Thecover plate 6 may be provided with an inner rectangular flange7, and anouter circular grooved flange V8, the latter being extended over the topmargin of the wall 2 and turned. down on the exterior, as illustrated inFigure 1; and the sheet metalfmay be compressed upon the edge of thewall 2.

In order to confine the contents of the inner rece to provi e formaintaining a vrefrigerant or freezing mixture' in position to chill thecontents but prevent escape thereof into the receptacle 1, I haveprovided -a combined cover and freezin mixture or other refrigerantcontainer a apted to have la tight friction fit in the upper portion ofthe -inner receptacleand to seal the freezing mixture so that it cannotescape. cover and container comprises a cup-shaped f body 19 which maybe `made' of suitable sheet material shaped so as to exactly fit withinthe upper end of-the inner receptacle. This cover container comprisesside walls 9, a bottom 10 and alateral ange 11 extending at right anglesfrom the upper edge of The saidl combined.

be compressed upon said wall y tacle substantially air tight, and lcup-shaped cover and freezing mixture conthe sidewalls 9, said angebeing of such form and dimensions as ,to completely cover the upper endof the entire container and extend over the upper edge of wall-2. As, inthe embodiment illustrated, the'inncr receptacle is square in section,the body of said tainer is of correspondin exterior form. lin order tosti'en the sai freezing mixture container and provide a round openinginto which a cover may be screwed, a cylindrical lining 12 of relativelythick material is fitted into the chamber of said cover and freezingmixture container. yThe inner surface o said lining is screwthreaded, asshown vat 13 and is suitably held to the Walls 9 and bottom 10. Thecylindrical lining 12 serves to hold the walls 9`rigid1y so that theycannot bulge inward and to provide dead air spaces 12a, serving asadditional insulation at those points where the corners of the wall 1 ofthe inner receptacle contact with the wall 2 of the outer container, atwhich points the insulation is less complete than at other points.

'lhe said combined cover and freezing mixture container is provided witha suitably insulated outer cover, here shown as consistin of a dat disk14 of considerable rigidity' aving a cylindrical threaded flange 15 onits under side, adapted to engage the threaded lining 12, the spacewithin the ange Aserving for the confined by a plate 17., A cover handle18 of adequate strength may be provided, by means ofvvhich the cover maybe screwed into lace. The joint between the cover 14 and t e flange 11of the freezing mixture receptaclemay be made airtight in any suitab emanner,

lt will beA apparent that the improved container is inexpensive tomanufacture;

that it is adapted to maintain ice cream or other frozen products ingood condition 'without danger of `contamination from the freezingmixture, for the reason that said mixture is substantially hermeticallyseparated from the ice cream or other frozen products.v The freezingmixture, being placed at the top of the receptacle, transfers l its loartemperature' to the contents of the .lining in said cup-like receptionof any suitable insulating material :16, which may be acentos receptaclein the most ecient manner since Yent is:

1; A heat -insulated container comprising an inner chamber inclosedwlthln an outer container, a closure for said inner chamber i comprisinga cup-like refrigerant container adapted to t snugly within the upperend ofA said inner chamber, said cup-like container having a Han eadapted to overlie the top of the insulated container, a threadedcontainer and a screw threaded insulated cover engaging the threadedsurface of the threaded lining, said cover having a flange correspondingin area and contour with the ange of the cup-like container, and adaptedto engage the outer surface thereof, the mouth of the cup-like containerbeing equal in area to the` cross section thereo 2. A heat insulatedcontainer comprising a rectan lar inner chamber enclosed within acylmdrical therefor comprising a hanged receptacle adapted to fitfrictionally within the upper end of said inner chamber, a threadedcylindrical lining for said closure receptacle, and

a heat insulated screw-threaded cap adapted to screw into said liningand seal said closure receptacle. y

3. A heat insulated container comprising a rectangular innerreceptacleenclosed within a cylindrical outer container, a rectan lar, an edrefrigerant container adaptedgilo fit tight y within the er receptacle,said refrigerant container havin threaded lining; plate provided acylindrical and a heat insulated cover with a cylindrical threadedflange for engaging the threaded lining and a horizontal ange extendingover the top of said outer angfe of the. refrigerant container. p

t ln testimony whereof l ax my signaure.

nien s., enanos.

outer wall, a tight closure;

container and engaging the

